Method and apparatus for translating protocol

Details Method and apparatus for translating protocol Method and apparatus for translating protocol

2007-12-18

2007-12-18

Rao, Seema S. (Department: 2616)

Multiplex communications

Communication techniques for information carried in plural...

Adaptive

C370S338000, C370S349000, C370S395520, C709S245000, C709S246000, C709S230000

Reexamination Certificate

active

10236316

ABSTRACT:
A translation apparatus retains a first correlation between a Mobile IPv6 terminal's home address and virtual IPv4 address. When the Mobile IPv6 terminal transmits a packet to said IPv6 network with a care-of address specified as the packet's source address and a home address specified in an extension header, the translation apparatus changes the packet's source address to a virtual IPv4 address that corresponds to the packet's home address in accordance with the first correlation, and then transmits the packet to an IPv4 network. Mobile IPv6 terminal-to-IPv4 terminal communication can then be established between an IPv6 network to which Mobile IPv6 terminals are connected and an IPv4 network to which IPv4 terminals are connected.

REFERENCES:
patent: 6708219 (2004-03-01), Borella et al.
patent: 6832251 (2004-12-01), Gelvin et al.
patent: 2001-268129 (2001-09-01), None
Internet Engineering Task Force, Request for Comments: 2766 “Network Address Translation-Protocol Translation (NAT-PT)” Feb. 2000.
Internet Engineering Task Force, Request for Comments: 2463 “Internet Control Message Protocol (ICMPv6) for the Internet Protocol Version 6 (lpv6) Specification” Dec. 1998.
Internet Engineering Task Force, Request for Comments: 792 “Internet Control Message Protocol DARPT Internet Program Protocol Specification” Sep. 1981.

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